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Conversational recommender systems (CRS) based on Large Language Models (LLMs) need to constantly be aligned to the user preferences to provide satisfying and context-relevant item recommendations. The traditional supervised fine-tuning…

Machine Learning · Computer Science 2025-08-08 Zhongheng Yang , Aijia Sun , Yushang Zhao , Yinuo Yang , Dannier Li , Chengrui Zhou

Affective computing seeks to support the holistic development of artificial intelligence by enabling machines to engage with human emotion. Recent foundation models, particularly large language models (LLMs), have been trained and evaluated…

Computation and Language · Computer Science 2026-03-16 Sree Bhattacharyya , Evgenii Kuriabov , Lucas Craig , Tharun Dilliraj , Reginald B. Adams, , Jia Li , James Z. Wang

Recommendation systems have been essential for both user experience and platform efficiency by alleviating information overload and supporting decision-making. Traditional methods, i.e., content-based filtering, collaborative filtering, and…

Information Retrieval · Computer Science 2025-08-22 Lining Chen , Qingwen Zeng , Huaming Chen

Precisely understanding users' contextual search intent has been an important challenge for conversational search. As conversational search sessions are much more diverse and long-tailed, existing methods trained on limited data still show…

Information Retrieval · Computer Science 2023-10-23 Kelong Mao , Zhicheng Dou , Fengran Mo , Jiewen Hou , Haonan Chen , Hongjin Qian

Conversational recommender systems (CRS) aim to timely trace the dynamic interests of users through dialogues and generate relevant responses for item recommendations. Recently, various external knowledge bases (especially knowledge graphs)…

Artificial Intelligence · Computer Science 2023-07-21 Wendi Li , Wei Wei , Xiaoye Qu , Xian-Ling Mao , Ye Yuan , Wenfeng Xie , Dangyang Chen

Conversational recommendation (ConvRec) systems must understand rich and diverse natural language (NL) expressions of user preferences and intents, often communicated in an indirect manner (e.g., "I'm watching my weight"). Such complex…

Computation and Language · Computer Science 2024-06-04 Sara Kemper , Justin Cui , Kai Dicarlantonio , Kathy Lin , Danjie Tang , Anton Korikov , Scott Sanner

Conversational recommender systems (CRS) aim to recommend high-quality items to users through interactive conversations. To develop an effective CRS, the support of high-quality datasets is essential. Existing CRS datasets mainly focus on…

Computation and Language · Computer Science 2020-11-03 Kun Zhou , Yuanhang Zhou , Wayne Xin Zhao , Xiaoke Wang , Ji-Rong Wen

Large Language Models (LLMs) for Recommendation (LLM4Rec) is a promising research direction that has demonstrated exceptional performance in this field. However, its inability to capture real-time user preferences greatly limits the…

Information Retrieval · Computer Science 2025-02-26 Zheqi Lv , Tianyu Zhan , Wenjie Wang , Xinyu Lin , Shengyu Zhang , Wenqiao Zhang , Jiwei Li , Kun Kuang , Fei Wu

Humans follow criteria when they execute tasks, and these criteria are directly used to assess the quality of task completion. Therefore, having models learn to use criteria to provide feedback can help humans or models to perform tasks…

Computation and Language · Computer Science 2024-06-05 Weizhe Yuan , Pengfei Liu , Matthias Gallé

Effective customer support requires not only accurate problem solving but also structured and empathetic communication aligned with professional standards. However, existing dialogue datasets often lack strategic guidance, and real-world…

Computation and Language · Computer Science 2025-11-11 Jie Zhu , Huaixia Dou , Junhui Li , Lifan Guo , Feng Chen , Chi Zhang , Fang Kong

Incorporating collaborative information (CI) effectively is crucial for leveraging LLMs in recommendation tasks. Existing approaches often encode CI using soft tokens or abstract identifiers, which introduces a semantic misalignment with…

Information Retrieval · Computer Science 2025-05-27 Haoran Xin , Ying Sun , Chao Wang , Weijia Zhang , Hui Xiong

Large language models (LLMs) have achieved remarkable progress in the field of natural language processing (NLP), demonstrating remarkable abilities in producing text that resembles human language for various tasks. This opens up new…

Information Retrieval · Computer Science 2024-06-05 Jianghao Lin , Xinyi Dai , Rong Shan , Bo Chen , Ruiming Tang , Yong Yu , Weinan Zhang

Conversational recommender systems (CRSs) operate under incremental preference revelation, requiring systems to make recommendation decisions under uncertainty. While recent approaches particularly those built on large language models…

Information Retrieval · Computer Science 2026-04-14 Subham Raj , Aman Vaibhav Jha , Mayank Anand , Sriparna Saha

The emergence of instruction-tuned large language models (LLMs) has advanced the field of dialogue systems, enabling both realistic user simulations and robust multi-turn conversational agents. However, existing research often evaluates…

Computation and Language · Computer Science 2025-07-22 Chalamalasetti Kranti , Sherzod Hakimov , David Schlangen

While modern dialogue systems heavily rely on large language models (LLMs), their implementation often goes beyond pure LLM interaction. Developers integrate multiple LLMs, external tools, and databases. Therefore, assessment of the…

Artificial Intelligence · Computer Science 2025-07-23 Roman Mayr , Michel Schimpf , Thomas Bohné

Recently, the fast development of Large Language Models (LLMs) such as ChatGPT has significantly advanced NLP tasks by enhancing the capabilities of conversational models. However, the application of LLMs in the recommendation domain has…

Information Retrieval · Computer Science 2023-08-24 Junling Liu , Chao Liu , Peilin Zhou , Qichen Ye , Dading Chong , Kang Zhou , Yueqi Xie , Yuwei Cao , Shoujin Wang , Chenyu You , Philip S. Yu

The paper underscores the significance of Large Language Models (LLMs) in reshaping recommender systems, attributing their value to unique reasoning abilities absent in traditional recommenders. Unlike conventional systems lacking direct…

Information Retrieval · Computer Science 2024-03-20 Arpita Vats , Vinija Jain , Rahul Raja , Aman Chadha

Recent research efforts have investigated how to integrate Large Language Models (LLMs) into recommendation, capitalizing on their semantic comprehension and open-world knowledge for user behavior understanding. These approaches…

Information Retrieval · Computer Science 2025-04-15 Haokai Ma , Yunshan Ma , Ruobing Xie , Lei Meng , Jialie Shen , Xingwu Sun , Zhanhui Kang , Tat-Seng Chua

Recommender systems are quintessential applications of human-computer interaction. Widely utilized in daily life, they offer significant convenience but also present numerous challenges, such as the information cocoon effect, privacy…

Information Retrieval · Computer Science 2024-11-25 Kaike Zhang , Yunfan Wu , Yougang lyu , Du Su , Yingqiang Ge , Shuchang Liu , Qi Cao , Zhaochun Ren , Fei Sun

For researchers leveraging Large-Language Models (LLMs) in the generation of training datasets, especially for conversational recommender systems - the absence of robust evaluation frameworks has been a long-standing problem. The efficiency…

Computation and Language · Computer Science 2022-12-19 Harsh Lara , Manoj Tiwari